Revision 2 / 256MB

Revision 2 / 512MB

Blue audio connector

Mounting Holes

Made in UK markings on Board

100MB link light labelled as 100

Black ‘Christmas tree’ Marking on USB Connector

Several different minor hardware versions/revisions RaspberryPi Boards have been found probably from different assembly lines.
Try to identify your board for better troubleshooting and update it if you have one which is not mentioned.